Fuzzy Logic Controlled Multi Input DC to DC Converter for EV Application

A DC–DC converter plays a vital role in an electric vehicle (EV) charging architecture by enabling the conversion of high-voltage DC from the charging source into a suitable lower-voltage level required by the EV battery. It ensures the battery receives appropriate voltage and current for efficient charging. A multi-input single output DC–DC converter has the ability to draw energy simultaneously from two independent DC sources, integrating them to supply a single load. Such converters are particularly advantageous when multiple power sources are available for utilization. The configuration of dual-input DC–DC converters can be achieved using either a single power-path or a parallel power-path topology. In this paper, a parallel power-path configuration is employed to design a dual-input DC–DC converter that integrates energy from a photovoltaic (PV) panel and an auxiliary lead acid storage battery for charging of EV battery. The proposed system has been simulated using MATLAB/Simulink with fuzzy logic controller, followed by hardware implementation and validation of results.